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Kiryu I Tephra

• Tephra
• Pliocene - Pleistocene
• Correlation: HS A

• Lithofacies: Vitreous volcanic ash

• Thickness: ca. 50 cm
• Host: Nango Gravels and Clays Member

• Distribution: Kamikiryu town, Ueda, Otsu city, Shiga pref.

• Wakita et al. (2013) Geology of the Kyoto-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 124p. (in Japanese with English abstract 3p.)